27. All about Dataframes in R

In this tutorial, we will be learning the following about data frames. a) How to create a data frame ? b) How to insert a new row, column ? c) How to display the top 6 or bottom 6 records in the data frame ? d) How to check the # of rows/columns in a data frame ? e) Indexing and Slicing a data frame f) Filtering a data frame g) How to change data frame column names ? h) Structure of a data frame i) How to write a file ? j) How to read a csv file ? k) How to access freely available data frames in R for practise purpose l) Difference between dollar symbol and square bracket while extracting a column in a dataframe This tutorial is part of the below playlist "Excel in R and Python": https://www.youtube.com/watch?v=Tplgk...